oss-security - CVE request: kernel: niu buffer overflow for ETHTOOL

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Message-ID: <4C886EAA.7090804@redhat.com>
Date: Thu, 09 Sep 2010 13:20:42 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>
Subject: CVE request: kernel: niu buffer overflow for ETHTOOL_GRXCLSRLALL

https://bugzilla.redhat.com/show_bug.cgi?id=632069
http://www.spinics.net/lists/netdev/msg140133.html

"niu_get_ethtool_tcam_all() assumes that its output buffer is the right 
size, and warns before returning if it is not.  However, the output 
buffer size is under user control and ETHTOOL_GRXCLSRLALL is an 
unprivileged ethtool command."

Affects kernel v2.6.30-rc1 onwards.

Thanks, Eugene
-- 
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }

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